What is the progression of als or lou gehrigs disease?

ALS: Devastating disease that has a progressive course of weakness causing loss of ability to walk, reach with arms, ability of independent activities of daily living and eventually ability to breath is affected. The ability to feel and think is unaffected. Course can take months to a few years after initial diagnosis.

Specifics: Amyotrophic lateral sclerosis is a disease of the motor nerve cell in brain and spinal cord, is progressive, irreversible, and causes muscle weakness, muscle flickering, and atrophy, in arms, legs, tongue, and leads to progressive disability, loss of ability to breathe and swallow. No cure, sole drug approved is Riluzole, which helps delay tracheostomy but not effect on weakness.